<script setup>
import {EditPen, Lock, Message, User} from "@element-plus/icons-vue";
import router from "@/router";
import {reactive, ref} from "vue";
import {ElMessage} from "element-plus";
import {post} from "@/net";

const form = reactive({
    username: '',
    password: '',
    password_repeat: '',
    email: '',
    code: ''
})

const validateUsername = (rule, value, callback) => {
    if (value === '') {
        callback(new Error('用户名不能为空！'))
    } else if (!/^[a-zA-Z0-9\u4e00-\u9fa5]+$/.test(value)) {
        callback(new Error('用户名不能包含特殊字符，只能是中文、字母或数字！'))
    } else {
        callback()
    }
}

const validatePassword = (rule, value, callback) => {
    if (value === '') {
        callback(new Error('请再次输入密码！'))
    } else if (value !== form.password) {
        callback(new Error("两次输入的密码不一致！"))
    } else {
        callback()
    }
}

const rules = {
    username: [
        {validator: validateUsername, trigger: ['blur', 'change']},
        {
            min: 2,
            max: 10,
            message: '用户名长度必须在2-10之间！',
            trigger: ['blur', 'change']
        }
    ],
    password: [
        {required: true, message: '请输入密码！', trigger: 'blur'},
        {
            min: 6,
            max: 16,
            message: '密码长度必须在6-16之间！',
            trigger: ['blur', 'change']
        }
    ],
    password_repeat: [
        {validator: validatePassword, trigger: ['blur', 'change']}
    ],
    email: [
        {
            required: true,
            message: '请输入电子邮箱地址！',
            trigger: 'blur'
        },
        {
            type: 'email',
            message: '请输入正确的邮箱地址！',
            trigger: ['blur', 'change']
        },
    ],
    code: [
        {required: true, message: '请输入验证码', trigger: ['blur', 'change']}
    ]
}

const isEmailValid = ref(false)
const formRef = ref()
const coldTime = ref(0)

const onValidate = (prop, isValid) => {
    if (prop === 'email') {
        isEmailValid.value = isValid
    }
}

const register = () => {
    formRef.value.validate((isValid) => {
        if (isValid) {
            post('/api/auth/register', {
                username: form.username,
                password: form.password,
                email: form.email,
                code: form.code
            }, (message) => {
                ElMessage.success(message)
                router.push('/welcome')
            })
        } else {
            ElMessage.warning('请完整填写注册信息！')
        }
    })
}

const validateEmail = () => {
    coldTime.value = 60
    post('/api/auth/valid-register-email', {
        email: form.email
    }, (message) => {
        ElMessage.success(message)
        setInterval(() => coldTime.value--, 1000)
    }, (message) =>{
        ElMessage.warning(message)
        coldTime.value = 0
    })
}
</script>

<template>
    <div style="text-align: center;margin: 70px">
        <div style="margin-top: 40px">
            <div style="font-size: 25px;font-weight: bold">注册新用户</div>
            <div style="font-size: 14px;color: gray">
                欢迎注册我们的博客
            </div>
        </div>
        <div style="margin-top: 50px">
            <el-form :model="form" :rules="rules" @validate="onValidate" ref="formRef">
                <el-form-item prop="username">
                    <el-input v-model="form.username" type="text" :maxlength="10" placeholder="用户名">
                        <template #prefix>
                            <el-icon>
                                <User/>
                            </el-icon>
                        </template>
                    </el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input v-model="form.password" type="password" :maxlength="16" placeholder="密码">
                        <template #prefix>
                            <el-icon>
                                <Lock/>
                            </el-icon>
                        </template>
                    </el-input>
                </el-form-item>
                <el-form-item prop="password_repeat">
                    <el-input v-model="form.password_repeat" type="password" :maxlength="16" placeholder="重复密码">
                        <template #prefix>
                            <el-icon>
                                <Lock/>
                            </el-icon>
                        </template>
                    </el-input>
                </el-form-item>
                <el-form-item prop="email">
                    <el-input v-model="form.email" type="email" placeholder="电子邮箱地址">
                        <template #prefix>
                            <el-icon>
                                <Message/>
                            </el-icon>
                        </template>
                    </el-input>
                </el-form-item>
                <el-form-item prop="code">
                    <el-row :gutter="5" style="width: 100%">
                        <el-col :span="15">
                            <el-input v-model="form.code" type="text" :maxlength="6" placeholder="请输入验证码">
                                <template #prefix>
                                    <el-icon>
                                        <EditPen/>
                                    </el-icon>
                                </template>
                            </el-input>
                        </el-col>
                        <el-col :span="9">
                            <el-button @click="validateEmail" type="success" :disabled="!isEmailValid || coldTime > 0">
                                {{ coldTime > 0 ? coldTime + '秒后可获取' : '获取验证码' }}
                            </el-button>
                        </el-col>
                    </el-row>
                </el-form-item>
            </el-form>
        </div>
        <div style="margin-top: 40px">
            <el-button @click="register" style="width: 250px" type="warning" plain>立即注册
            </el-button>
        </div>
        <div style="font-size: 14px;line-height: 15px;margin-top: 20px">
            <span>已有账号？</span>
            <el-link @click="router.push('/')" type="primary"
                     style="translate: 0 -1px">立即登录
            </el-link>
        </div>
    </div>
</template>

<style scoped>

</style>